I don't think the OP asked about Apple TV and iPad. He stated "iPhone".
BUT with me: I don't stream often but sometimes because I have roommates in college.
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I have not nor would I ever watch anything streaming on my iPhone or even on my iPad. I do all that from the comfort of my armchair and 27" widescreen computer monitor on a wired 70Mb fibre optic connection.
how often do you actually watch shows on your "iPhone"? Me? Never.
I watch on my iPhone during many of those boring meetings. My hair is long so I can pop in the earbud from my LG Tones or Moto Buds (whichever I'm using that day) & have a bit of enjoyment during an otherwise mind numbing meeting